Results 11 to 20 of about 2,065,037 (263)

The coevolution of toxin and antitoxin genes drives the dynamics of bacterial addiction complexes and intragenomic conflict [PDF]

open access: yes, 2012
Bacterial genomes commonly contain 'addiction' gene complexes that code for both a toxin and a corresponding antitoxin. As long as both genes are expressed, cells carrying the complex can remain healthy.
Rankin, Daniel J.   +7 more
core   +1 more source

Comparative genomics of Shiga toxin encoding bacteriophages [PDF]

open access: yes, 2012
Background Stx bacteriophages are responsible for driving the dissemination of Stx toxin genes (stx) across their bacterial host range. Lysogens carrying Stx phages can cause severe, lifethreatening disease and Stx toxin is an integral virulence factor.
Alan J McCarthy   +20 more
core   +1 more source

Characterizing RecA-Independent Induction of Shiga toxin2-encoding Phages by EDTA Treatment [PDF]

open access: yes, 2012
The bacteriophage life cycle has an important role in Shiga toxin (Stx) expression. The induction of Shiga toxin-encoding phages (Stx phages) increases toxin production as a result of replication of the phage genome, and phage lysis of the host cell also
Muniesa Maite   +8 more
core   +3 more sources

Intimin, tir, and shiga toxin 1 do not influence enteropathogenic responses to shiga toxin-producing Escherichia coli in bovine ligated intestinal loops [PDF]

open access: yes, 2002
Shiga toxin-producing Escherchia coli (STEC) comprises a group of attaching and effacing (A/E) enteric pathogens of animals and humans. Natural and experimental infection of calves with STEC may result in acute enteritis or subclinical infection ...
Campbell, June   +23 more
core   +1 more source

Investigation of Toxin Profiles of Methicillin Resistant and Sensitive Staphylococcus aureus Strains Isolated from Various Clinical Specimens

open access: yesDüzce Tıp Fakültesi Dergisi, 2021
Aim: This study aimed to investigate the superantigenic (SAg) toxin, exfoliative toxin (ET), hemolysin (HLY), leukotoxin (LUK) genes and accessory gene regulator (agr) types in Staphylococcus aureus isolates from various clinical materials.
Burçin Özer   +2 more
doaj   +1 more source

Typing of isolates of Clostridium perfringensfrom healthy and diseased sheep by multiplex PCR

open access: yesVeterinární Medicína, 2005
In this study, C. perfringens strains isolated from healthy and diseased sheep were analysed by multiplex PCR in order to to detect the presence of the alpha, beta, epsilon, iota and enterotoxin genes. C.
H. Kalender   +5 more
doaj   +1 more source

Structural insights into Clostridium perfringens delta toxin pore formation [PDF]

open access: yes, 2013
Clostridium perfringens Delta toxin is one of the three hemolysin-like proteins produced by C. perfringens type C and possibly type B strains. One of the others, NetB, has been shown to be the major cause of Avian Nectrotic Enteritis, which following the
Claire E Naylor   +37 more
core   +1 more source

Are Known Cyanotoxins Involved in the Toxicity of Picoplanktonic and Filamentous North Atlantic Marine Cyanobacteria?

open access: yesMarine Drugs, 2010
Eight marine cyanobacteria strains of the genera Cyanobium, Leptolyngbya, Oscillatoria, Phormidium, and Synechococcus were isolated from rocky beaches along the Atlantic Portuguese central coast and tested for ecotoxicity.
Bárbara Frazão   +2 more
doaj   +1 more source

Molecular Evaluation of Traditional Chicken Farm-Associated Bioaerosols for Methicillin-Resistant Staphylococcus aureus Shedding

open access: yesAntibiotics, 2021
The outbreak of airborne pathogens, such as methicillin-resistant Staphylococcus aureus (MRSA) through bioaerosol, and their molecular characterization around domestic poultry farming areas, was not completely understood.
Chi-Wei Tao   +6 more
doaj   +1 more source

Exploring the functional domain and the target of the tetanus toxin light chain in neurohypophysial terminals [PDF]

open access: yes, 1994
The tetanus toxin light chain blocks calcium induced vasopressin release from neurohypophysial nerve terminals. Here we show that histidine residue 233 within the putative zinc binding motif of the tetanus toxin light chain is essential for the ...
Weller, U.   +7 more
core   +1 more source

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